<!DOCTYPE html>
<html lang="en">
<!-- head部分 -->
<head th:fragment="head(title)">
    <meta charset="UTF-8">
    <title th:text="${title}"></title>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.5.0/font/bootstrap-icons.css">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
</body>
</html>